R19: Other symptoms and signs involving the digestive system and abdomen

R19.6: Halitosis

Halitosis, also commonly known as bad breath, is a condition that can cause significant distress and social embarrassment. This medical condition can result from a variety of underlying causes. Often, it's due to poor oral hygiene which allows bacteria to grow and produce unpleasant smelling chemicals on the tongue or between the teeth. However, it can also be due to systemic illnesses such as diabetes, kidney disease, liver disease, respiratory tract infections, and digestive issues including acid reflux or gastritis. Symptoms are generally straightforward - there is a noticeable and often persistent unpleasant odor from the mouth. It's important to note that many people can have a hard time assessing if they themselves have halitosis, so it's usually identified by a report from a reliable informant, or confirmed by a healthcare provider. The seriousness and progression of halitosis largely depend on the underlying cause.